The password for /usr/bin/software-properties-kde
isn't being accepted when I run in KDE
I have added the current user to root and created a group called wheel, added current the user to it.
and
I am getting the following error message from command line
when I run as su
/usr/bin/software-properties-kde
qt.qpa.screen: QXcbConnection: Could not connect to display
Could not connect to any X display.